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Erschienen in: Annals of Surgical Oncology 3/2011

01.03.2011 | Colorectal Cancer

Outcome Standards for an Organ Preservation Strategy in Stage II and III Rectal Adenocarcinoma after Neoadjuvant Chemoradiation

verfasst von: Albert M. Wolthuis, MD, Freddy Penninckx, MD, PhD, Karin Haustermans, MD, PhD, Nadine Ectors, MD, PhD, Eric Van Cutsem, MD, PhD, André D’Hoore, MD, PhD

Erschienen in: Annals of Surgical Oncology | Ausgabe 3/2011

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Abstract

Background

Neoadjuvant chemoradiotherapy is the standard of care for patients with locally advanced mid and distal rectal cancer. Tumor regression is variable, and this study was designed to evaluate the pathological response and impact on long-term disease control in responders and nonresponders.

Methods

A total of 303 consecutive patients with cStage II and III mid and distal rectal adenocarcinoma were identified. The mean age was 64 years and 63% were men. Patients received neoadjuvant chemoradiotherapy (45 Gy) with a continuous infusion of 5-fluorouracil. Total mesorectal excision (TME) was performed after an interval of 6–8 weeks. Tumors were stratified as responders (ypT0 or ypT1) and nonresponders (≥ypT3). All ypT2 were separately categorized.

Results

Tumors of 84 patients were classified as responders (27.5%) versus nonresponders in 144 patients (47.5%). Pathological tumor stage was ypT2 in 75 patients (25%). After a median follow-up of 55 months, the 5-year cancer-specific survival rate was 98% and the disease-free survival rate was 91% in responders versus 82% (P < 0.0025) and 60% (P < 0.0001), respectively, for the nonresponders.

Conclusions

After neoadjuvant chemoradiotherapy and TME surgery for locally advanced rectal cancer and complete or near-complete pathological tumor response oncological outcome is very good. These results set the standards for a rectum-sparing strategy.
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Metadaten
Titel
Outcome Standards for an Organ Preservation Strategy in Stage II and III Rectal Adenocarcinoma after Neoadjuvant Chemoradiation
verfasst von
Albert M. Wolthuis, MD
Freddy Penninckx, MD, PhD
Karin Haustermans, MD, PhD
Nadine Ectors, MD, PhD
Eric Van Cutsem, MD, PhD
André D’Hoore, MD, PhD
Publikationsdatum
01.03.2011
Verlag
Springer-Verlag
Erschienen in
Annals of Surgical Oncology / Ausgabe 3/2011
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-010-1324-5

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